Randy Arozarena is leading the Seattle Mariners with 3.2 WAR. He’s on pace for a career-high 4.5 WAR. He’s running a 138 wRC+, his best mark since the summer of 2020, when a steady diet of chicken, rice, and pushups turned him into the kid who only hit homers. He was an All-Star. But some of Arozarena’s underlying numbers are confusing. He’s on pace for 20 home runs, his standard year-end total. If you’ll forgive a digression, Arozarena has ended up with 20 homers in three of his five full seasons, which ties him for third on the all-time 20-homer-season leaderboard, behind only Bobby Abreu (five) and Harold Baines (four). But Arozarena’s bat speed is down by a huge margin, as is his launch angle. How is he going yard just as often while swinging softer and running a career-high groundball rate? Let’s try to figure out what’s going on here.

I always like to start with plate discipline, and that’s certainly a logical jumping off point, because the biggest change in Arozarena’s profile is in the strikeout column. He’s running a 20.7% strikeout rate this season. That’s an enormous six-point drop from last year, and it’s more than three points below his previous low. In fact, if you look at things from a certain angle, that drop is the entire reason that Arozarena is putting up his best season ever. If you ignore walks and strikeouts and just look at balls in play, Arozarena’s wOBAcon and xwOBAcon are nearly identical both to the numbers he put up last year and to his career averages:

Arozarena is getting the same results as ever when he puts the ball in play. Now, I know that he’s getting to those results in a different way, and we’re going to dive into those differences soon, but in that sense, the entirety of his wRC+ boost has come from the fact that he’s striking so much less. So let’s talk about why he’s striking out less. Read the rest of this entry »

Over the weekend, a friend of mine asked if ABS challenge data gets incorporated into WAR. (I have extremely cool friends.) It doesn’t, and I explained that while an individual challenge can absolutely change the course of an inning (or a game, or even a season), a single ball-strike call is of negligible run value out of context. If anything, we should be adding challenges to WPA, not WAR, except WPA only gets calculated on a per-plate-appearance basis, rather than a per-pitch basis.

At any rate, challenges aren’t like catcher framing in the early days. In 2008, the first year for which we have framing data, the difference between the best framer in baseball (Brian McCann) and the worst (Ryan Doumit, the poor guy) was 97.7 runs. At 10 runs per win, well, you can do the math on your own. Read the rest of this entry »

Ben Lindbergh and Meg Rowley banter about a quick hook for Keith Foulke in the WPBL and Stat Blast about the historic outcome of a series between two streaking teams before analyzing an update on Giancarlo Stanton’s status, the effect of era on Jacob Wilson’s errorless streak, the significance of baseball’s resurgence in Hollywood (as evidenced by a Netflix Yankees series, three upcoming baseball movies, and a baseball tangent on Ted Lasso), Mike Krukow and the best team scenario for a beloved broadcaster’s farewell tour, Max Scherzer’s small-sample resurgence, and the latest on Hunter Greene, Paul Skenes, and Gerrit Cole.

Audio intro: Justin Peters, “Effectively Wild Theme”
Audio outro: Cory Brent, “Effectively Wild Theme”

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Even as teams have settled into their new normal following all the activity surrounding the trade deadline, the standings haven’t become any clearer with two months of the regular season left to play. There are still wide open division races and crowded Wild Card chases. For the teams already looking forward to next year, the stretch run is an opportunity to evaluate their rosters, and maybe play a little spoiler against those vying for the postseason.

Our power rankings use a modified Elo rating system. If you’re familiar with chess rankings, you’ll know that Elo is an elegant ranking format that measures teams’ relative strength and is very reactive to recent performance. To avoid overweighting recent results during the season, we weigh each team’s raw Elo rank using our coin flip playoff odds (specifically, we regress the playoff odds by 50% and weigh those against the raw Elo ranking, increasing in weight as the season progresses to a maximum of 25%). The weighted Elo ranks are then displayed as “Power Score” in the tables below. As the best and worst teams sort themselves out between now and October, they’ll filter to the top and bottom of the rankings, while the exercise remains reactive to hot streaks and cold snaps. If you’re looking for a visual representation of the ups and downs of your team throughout the season, look no further than the brand new Power Rankings Board in the FanGraphs Lab.

First up are the full rankings, presented in a sortable table. Below that, I’ve grouped the teams into tiers with comments on a handful of clubs. You’ll notice that the official ordinal rankings don’t always match the tiers — there are times where I take editorial liberties when grouping teams together — but generally, the ordering is consistent. One thing to note: The playoff odds listed in the tables below are our standard Depth Charts odds, not the coin flip odds that are used in the ranking formula. Read the rest of this entry »

Read the rest of this entry »

Even by the standards of his recent, injury-marred seasons, Max Scherzer’s 2026 campaign has been a rough one. The 42-year-old righty has made two trips to the injured list, and through the end of July had taken just seven starts and allowed more than a run per inning. Even on a Blue Jays team destined to be retooled ahead of the trade deadline, he was clearly in no shape to be any contender’s hired gun. Nonetheless, Scherzer’s last two starts have been bright spots, and on Saturday evening, he notched career strikeout 3,516, officially moving him into the all-time top 10.

Scherzer wasn’t the only pitcher who reached a strikeout milestone this weekend. Aaron Nola, who started for the Phillies opposite Scherzer at Citizens Bank Park, collected his 2,000th career strikeout. Elsewhere, in a matchup that pitted the third- and fourth-ranked pitchers on the active strikeouts leaderboard, namely Chris Sale and Gerrit Cole, the latter notched his 1,000th strikeout since joining the Yankees. Then on Sunday, Jacob Misiorowski became the first pitcher to notch his 200th strikeout of the season.

I’ll get to all of those pitchers, but first Scherzer. After holding Philadelphia scoreless through five innings while scattering three hits and striking out three, he returned for the sixth inning and faced leadoff hitter Kyle Schwarber, who entered the day as the major league leader in strikeouts (172) and who on June 10 in Toronto was the victim of Scherzer’s career strikeout no. 3,500. That outing was the only major league start Scherzer took between April 24 and July 27; first he was sidelined by a combination of forearm tendinitis and left ankle inflammation, and then — after lasting just 3.1 innings against the Phillies while being tagged for five runs — a bout of back spasms. He was in much better shape on Saturday evening, and in his previous two plate appearances against Schwarber had limited the slugger to a groundout and an infield single. Read the rest of this entry »

Hello. While on paternity leave, I kept a journal about baseball and my daughter, who is not named Derek Jr., but who will henceforth be referred to as Derek Jr. You can read all of the entries here.

May 30
“There’s no weekend.” I remember thinking that night after night in the early going, as I held Derek Jr. in my arms while everyone else slept. There’s no weekend. In baseball, they talk about the grind of a long season. Even the off days are rarely actual days off because there’s so much travel involved. Everyone’s banged up. Everyone’s fighting to get proper nutrition and enough sleep. I don’t know if it’s true, but I remember reading somewhere that ballplayers consider a day game followed by a night game essentially a day off, just because they finally get an evening to themselves. Anyway, that’s what I used to think in the dark in the wee hours of the morning, feeling new aches in my arms or my neck or my back or all three. There is no weekend. There is no day off. Saturday has come and gone, and I’m up in the middle of the night with Derek Jr. Sunday will come, and I’ll again be up in the middle of the night with Derek Jr. Read the rest of this entry »

Davis Martin had a first inning to forget on Tuesday. Pitching at Fenway Park, the Chicago White Sox right-hander was torched for six runs by a scorching-hot Red Sox team that went on to prevail 14-2. He settled down after the tumultuous frame — only one more runner crossed the plate before Martin departed in the sixth — but by then the damage was done.

What happened in the fateful first inning? I asked him that question the following day, but before we get to his thoughts, a quick recap:

With two on and one out, Willson Contreras singled home a run. Two batters later, Caleb Durbin launched a grand slam. Jarren Duran then followed with a solo shot on Martin’s 20th pitch of the game.

The hurler’s take?

“First, there is a lot to be said about how good this Red Sox team is, and what they’ve been doing,” said Martin, who is 9-6 with a 4.13 ERA and a 3.48 FIP over 122 innings on the season. “We studied the scouting report, and there weren’t a lot of pitches that I would want to take back. But yeah, I felt that they were one step ahead. They were doing a really good job of keeping me off balance.”

Red Sox hitters had clearly been more aggressive than the White Sox expected. Half a dozen runs coming on 20 pitches thrown to seven batters is notable, especially when you consider that Contreras saw six of them. His at-bat was arguably the key to the inning. After fouling off consecutive two-strike offerings, the slugger got his RBI knock on a breaking ball that was well wide of the plate. Read the rest of this entry »

On Friday, the Boston Globe ran a story by Red Sox beat writer Alex Speier on the concept of momentum. I can hear the collective groans of our Members now. Haven’t we gone over this enough? We’ve already established that there’s no such thing as momentum! Or, if there is, its effect is minimal. Our readers would be the first to point out that the month-and-a-half long surge up in Boston is mostly a matter of a talented, drastically underperforming Sox team experiencing some serious positive regression, bringing its overall record back up to about where we expected it to be all along. I get that, of course. We cannot conclusively prove the effect of momentum in baseball — and it’s not for lack of trying — and so therefore cannot definitively say that it exists. Yet when it comes to the Big Mo, a palpable feeling rather than a tangible metric, I tend to subscribe to what I call the Robert Graysmith Theory: Just because you can’t prove it, doesn’t mean it isn’t true.

What’s interesting about Speier’s piece is that he, along with Globe staffers Julian Benbow and Daigo Fujiwara-Smith, looked for data to support the impact of momentum on winning and losing streaks. Speier, an analytically savvy writer, said in his Bluesky post sharing the story that he “was skeptical” that their search would lead to anything. Instead, he was astonished to learn that, as he writes in the story, “A Globe analysis of Retrosheet data that includes the outcome of every MLB game from 1901 through 2025 revealed a striking pattern: The longer a winning streak lasts, the higher a team’s winning percentage in the next game.” The inverse is true for losing streaks. Speier mentions several factors unrelated to momentum that help to explain why “baseball streaks tend to be somewhat self-sustaining,” most notably that team quality probably plays a major role in enduring stretches of winning or losing. That alone is enough of a reason to maintain any skepticism you may have toward the idea of momentum. But at the same time, we should acknowledge that many players believe in the power of momentum, and if that belief influences how they feel, and how they feel contributes to how they perform, then it stands to reason that momentum — or at least, their belief in momentum — has at least some impact on performance.

That’s the last we’ll be discussing momentum here, though I’d encourage you to read the entirety of Speier’s story after you’ve finished reading this mailbag. Instead, today we’ll be answering your questions on players to be named later, the teams that most improved (or diminished) their 2027 playoff odds with their moves at this season’s trade deadline, and where Pete Crow-Armstrong would stack up on the five-star catches leaderboard if we had Statcast data going back through baseball’s history. But before we do, I’d like to remind you that this mailbag is exclusive to FanGraphs Members. If you aren’t yet a Member and would like to keep reading, you can sign up for a Membership here. It’s the best way to both experience the site and support our staff, and it comes with a bunch of other great benefits. Also, if you’d like to ask a question for an upcoming mailbag, send me an email at mailbag@fangraphs.com. Read the rest of this entry »